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磷酸镁水泥固化体中Sr2+、Cs+浸出性能及迁移模型研究
Study on the leaching performance and transport model of Sr2+, Cs+ in magnesium phosphate cement
- 核技术 2016年39卷第8期 文章编号：080501
- 作者机构：
后勤工程学院 化学与材料工程系 重庆 401311
- 作者简介：
[ "戴丰乐, 男, 1992年出生, 2014年毕业于后勤工程学院, 现为硕士研究生, 主要从事磷酸镁水泥材料研究", "DAI Fengle, male, born in 1992, graduated from Logistical Engineering University in 2014, master student, focusing on magnesium phosphate cement research" ]
汪宏涛, E-mail:wht1969@163.com WANG Hongtao, E-mail: wht1969@163.com
- 基金信息：国家自然科学基金(No.51272283);重庆市自然科学基金(No.CSTC2012jjB50009)
DOI：10.11889/j.0253-3219.2016.hjs.39.080501
中图分类号： TU526收稿日期：2015-12-31，
修回日期：2016-03-22，
纸质出版日期：2016-08
- 稿件说明：
移动端阅览
戴丰乐, 汪宏涛, 张时豪, 等. 磷酸镁水泥固化体中Sr2+、Cs+浸出性能及迁移模型研究[J]. 核技术, 2016,39(8):080501
Fengle DAI, Hongtao WANG, Shihao ZHANG, et al. Study on the leaching performance and transport model of Sr2+, Cs+ in magnesium phosphate cement[J]. Nuclear techniques, 2016, 39(8): 080501
戴丰乐, 汪宏涛, 张时豪, 等. 磷酸镁水泥固化体中Sr2+、Cs+浸出性能及迁移模型研究[J]. 核技术, 2016,39(8):080501 DOI： 10.11889/j.0253-3219.2016.hjs.39.080501.
Fengle DAI, Hongtao WANG, Shihao ZHANG, et al. Study on the leaching performance and transport model of Sr2+, Cs+ in magnesium phosphate cement[J]. Nuclear techniques, 2016, 39(8): 080501 DOI： 10.11889/j.0253-3219.2016.hjs.39.080501.
摘要
采用磷酸镁水泥（Magnesium phosphate cement
MPC）对核素Sr
2+
、Cs
+
进行固化，对固化体中Sr
2+
、Cs
+
的浸出性能进行了研究，并根据Fick第二定律建立了适用于磷酸镁体系的Sr
2+
、Cs
+
迁移模型，对核素Sr
2+
、Cs
+
在磷酸镁水泥固化体中的迁移进行预测。结果表明，磷酸镁水泥可以有效固化Sr和Cs，使核素Sr
2+
、Cs
+
在磷酸镁水泥固化体中浸出率较低；建立的一维衰变浸出模型可以有效地预测核素Sr
2+
、Cs
+
在磷酸镁水泥固化体中的迁移规律。
Abstract
Background:
2
Magnesium phosphate cement (MPC) has a good application prospect in radioactive waste solidification for its good adsorption property of Sr and Cs which are the main elements in the middle and low level nuclear reactor waste.
Purpose:
2
This study aims to investigate the migration of radionuclides in MPC and build a transport model of Sr
2+
Cs
+
in MPC.
Methods:
2
According to Fick's second law
the migration model of Sr
2+
Cs
+
to predict the leaching behavior of Sr
2+
Cs
+
was established by studying the leach abilities of Sr
2+
and Cs
+
in MPC.
Results:
2
Sr and Cs can be effectively solidified by MPC
and the leaching rate of Sr
2+
Cs
+
is low. Compared with Sr
2+
Cs
+
has stronger migration ability in magnesium phosphate cement.
Conclusion:
2
The leaching behavior of Sr
2+
Cs
+
immobilized in MPC can be predicted well by one-dimension decay migration model. In addition
the migration behavior of Sr
2+
was predicted more accurately by the migration model.
关键词
Keywords
references
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